2890040

素因数分解:

$2^3\times 5^1\times {\mathrm{72251}}^1$

素因数の和:72262

約数の個数: 16

約数和(自身を含む): 6502680

約数和(自身を除く): 3612640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 72251, 144502, 289004, 361255, 578008, 722510, 1445020, 2890040]

約数ペア:

[(1, 2890040), (2, 1445020), (4, 722510), (5, 578008), (8, 361255), (10, 289004), (20, 144502), (40, 72251)]